A system where boxes (12) move along a conveyor belt and a bar code scanner reads bar codes (20) on the boxes and detects the presence of a box (with or without a readable barcode), which facilitates establishing a box detector that detects the leading edge of a box. The bar code scanner has a scanning...http://www.google.fr/patents/US6739513?utm_source=gb-gplus-shareBrevet US6739513 - Box detector in barcode environment
